exam Maths Puzzle Numerical Ability

Write the factors for each of the following numbers. 48, 72, 93 and 126.

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exam Other Question

write the equation of a quadratic f(x) such that f(0)=8 and a vertex at x=0. I need to know the radius and center for this equation. It is for cirles.
4x^2+75x-35y+4y^2=0